JFrame中的矩形创建向右移动，没有明显的原因

时间：2017-05-16 04:02:13

标签： java arrays swing jframe

我尝试使用2D数组为JFrame着色以创建网格，以及＃34; map＆＃34;为学校项目。 问题是，在框架的（0,0）位置，出现一个随机的灰色框，将所有内容推向右侧。它甚至将最后一个块推到了NEXT行的第一个位置，这让我非常困惑。

我考虑到数组以索引＆＃34; 0＆＃34;开头的事实，并且我想知道为什么它没有在（0,0）位置绘制黑盒子。

以下是我的代码中的两个相关类：

public class Floor1Components extends JComponent {
  public void paintComponent(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;

    for (int y = 0; y < Map.floor1Schematics.length; y++) { //for every row

        for(int x = 0; x < Map.floor1Schematics[0].length; x++) {   //do something for every column
            Rectangle block = new Rectangle((x*50), (y*50), 50, 50);
            g2.draw(block);
            g2.fill(block);
            if(Map.floor1Schematics[y][x].equals("wl")) {
                g2.setColor(Color.BLACK);
            }
            if(Map.floor1Schematics[y][x].equals("gr")) {
                g2.setColor(Color.GREEN);
            }
            if(Map.floor1Schematics[y][x].equals("end")) {
                g2.setColor(Color.RED);
            }
            if(Map.floor1Schematics[y][x].equals("ch")) {
                g2.setColor(Color.YELLOW);
            }
            if(Map.floor1Schematics[y][x].equals("pv")) {
                g2.setColor(Color.GRAY);
            }
        }

    }   
}

} 

public class Map {

public static boolean floor1 = true;
public static boolean floor2 = false;
public static boolean floor3 = false;

public static JFrame frame = new JFrame();

public static String floor1Schematics[][] = 
    {
{"wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl"},
{"wl","gr","gr","gr","wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl","gr","gr","gr","wl"},
{"wl","gr","ch","gr","wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl","gr","ch","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","wl","wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl","wl","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","pv","pv","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","pv","pv","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","wl"},
{"wl","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","pv","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","pv","pv","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","pv","pv","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","wl","wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl","wl","wl"},
{"wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl"},
{"wl","gr","ch","gr","wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl","gr","ch","gr","wl"},
{"wl","gr","gr","gr","wl","gr","gr","gr","gr","gr","gr","gr","gr","gr","pv","pv","gr","gr","gr","gr","gr","gr","gr","gr","gr","wl","gr","gr","gr","wl"},
{"wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl","wl"},

    };

public static void createFrame() {

    frame.setSize(1600,1600);
    frame.setTitle("Frame");
    frame.setResizable(false);
    //frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
    //PlayerModel player = new PlayerModel();
    //frame.add(player);
    //frame.setVisible(true);
    if (floor1 && !floor2 && !floor3) {
        Floor1Components floor1 = new Floor1Components();
        frame.add(floor1);
        frame.setVisible(true);
    }
}

public static void main(String[] args) {
    createFrame();
}

}

为2D阵列的暴行道歉，即用于着色和检测你站在哪个块上。但是我很困惑为什么一切都被推到了右边，然后再被推倒了。我已经对块创建和索引引用的数学进行了数千次的研究。

1 个答案:

答案 0 :(得分：1)

我认为你应该把

        g2.draw(block);
        g2.fill(block);
在你的setcolors之后，如果我没弄错的话。

对于第一个元素，您正在绘制一个框，然后设置颜色。如果有帮助，请告诉我。如果你有主要的方法代码，我愿意进一步帮助。

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